8 Aug

How To Hire a PHP Developer in 2018

Hire PHP Developer 2018

PHP is a very popular language designed for web development, although it is also occasionally used as a general-purpose programming language. There are many reasons why you might want to hire a PHP developer, including the fact that its friendly with HTML, has plenty of interactive features, and many talented developers use this language.

If you’d like to hire a PHP developer to build a website, it’s good to know that it works well with HTML and the two are interchangeable within the page. PHP can add interactive features that aren’t feasible with merely using HTML. Some examples of PHP integration include simple email forms, saved past orders, or private messaging systems.

With the numerous features that come with PHP, that means that it is a popular language, which benefits you in many ways. Talented programmers can master the basics fairly quickly, leaving them plenty of time for advancement. Additionally, there is a very online large community with incredible documentation, helpful blogs, and lots of tips and advice.

Let’s not forget one of the main reasons that a company might want to hire a PHP developer: PHP is open source and fully available online for free. It’s also compatible with many databases, such as MySql, if your developer utilizes an extension or abstraction layer.

Let’s take a look at some other PHP features. Or, if you’de like to jump right in into finding one to work for you, get in touch with us.

 

Why Hire a PHP Developer?

It’s fast

One of the reasons that PHP has faster site loading speeds is because it runs on its own memory space. Slow load times are disastrous for companies wishing to drive business to their site, so this is a significant PHP feature.

It’s Open-Source

Being open-source has numerous benefits. First, it’s freely available online, and most associated PHP tools are also free open-source software. This both helps drive down costs and increases the possible solutions and tools online. Second, the open-source language and software mean that there are more tools and a broader community improving everything related to PHP.

Database connectivity

PHP is very flexible with regards to database connectivity, as it can connect to several different databases. Although the most commonly used is MySQL, your PHP developer is not limited to using this option only, giving them more freedom.

Excellent documentation

PHP is often praised as being a language with the most extensive and understandable online documentation. With this, combined with a solid framework of functions, PHP is one of the best-supported languages with a never-ending number of forums, tutorials, questions, and answers about it.

The reasons that you’d want to hire a PHP developer are reasonably simple. It is accepted globally and can be used in all website development and design efforts, and the broad community means that any developer you hire can always rely on advice and support from their peers…

Hire PHP Developer 2018
How good is your PHP developer candidate? Below you’ll find the questions to ask during the interview.

Top PHP Interview Questions of 2018

While you might know why you want to hire a PHP developer, you still might be unsure about the best PHP interview questions of 2018 to ask your potential hire. We’ve included the best questions to help make sure your interviewee knows what they’re talking about, but if you want to skip the hard work, contact us to find you a vetted, verified PHP developer.

Explain the difference between == and === operator in PHP.

This question is relatively simple but helps us understand if your potential developer knows common operators in PHP and understands the concept of data types. == is an equal operator and will return TRUE if $a is equal to $b after type juggling. ===, instead, is the identical operator and will only return TRUE if $a is equal to $b and they are of the same data type.

 

Let’s take a look at an example:

<?php

  $a=true;

  $b=1;

  // Below condition returns true and prints a and b are equal

  if($a==$b){

   echo “a and b are equal”;

  }else{

   echo “a and b are not equal”;

  }

  //Below condition returns false and prints a and b are not equal because $a    and $b are of different data types.

  if($a===$b){

   echo “a and b are equal”;

  }else{

   echo “a and b are not equal”;

  }

?>

Explain what a session is in PHP and how to remove data from a session.

Essentially, PHP sessions are used to directly store data for individual users and clients against a unique session ID to maintain states on the server and share data across multiple pages. The session IDs are typically “sent to the browser via session cookies and the ID is used to retrieve existing session data.” If, however, a session ID is not present on the server already, PHP creates a new session and generates a unique session ID.

 

Let’s look at an example:

<?php

//starting a session

session_start();

//Creating a session

$_SESSION[‘user_info’]=[‘user_id’=>1,’first_name’=>’php’,’last_name’=>’scots’,’status’=>’active’];

 

//checking session

if(isset($_SESSION[‘user_info’])){

echo “logged In”;

}

 

//un setting remove a value from session

unset($_SESSION[‘user_info’][‘first_name’]);

 

// destroying complete session

session_destroy();

 

?>

Show how to register a variable in a PHP session.

There are two ways to register a variable in a PHP session that your PHP developer to hire should know. In PHP 5.3 or below, it should be registered via the session_register() function. Now, however, it’s possible to directly set a value in $_SESSION Global.

 

Here’s an example of both:

<?php

  // Starting session

   session_start();

  // Use of session_register() is deprecated

   $username = “PhpScots”;

   session_register(“username”);

  // Use of $_SESSION is preferred

   $_SESSION[“username”] = “PhpScots”;

?>

In PHP, what are constructors and destructors?

Constructor and Destructor are special type functions called when a PHP class object is created and destroyed. To initialize the private variables, constructors are typically used, whereas destructors free up the resources created and used by the class.


Here is a sample:

<?php

class Foo {

  

   private $name;

   private $link;

 

   public function __construct($name) {

       $this->name = $name;

   }

 

   public function setLink(Foo $link){

       $this->link = $link;

   }

 

   public function __destruct() {

       echo ‘Destroying: ‘, $this->name, PHP_EOL;

   }

}

?>

Hire a PHP Developer

Now you understand the benefits to PHP as well as the top PHP interview questions of 2018 to ask your potential developers. However, the long process of finding a talented coder to join your team can be daunting. Instead, contact us to receive a vetted PHP developer to hire who is a guaranteed expert.

 

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